Quantum StorNext QD7000 Hardware Manual page 77

The following table lists the redundant and non-redundant components in a switched configuration
with one host and a controller shelf.
Component
Host/server
Host adapter
Host-to-controller cable
Switch
Controller
Two hosts to a storage array
The following figure shows an example of a switch topology with two hosts, a controller shelf, and a
zoned switch. Each outlined group of ports on the switch represents a zone.
The hosts/servers in this example must be clustered to be redundant.
Note:
Host/Server
HBA 1 HBA 2
Host Host
Port 1 Port 2
Controller A
Redundant
Non-redundant
Redundant
Redundant
Use two switches for full redundancy. A single
zoned switch is not redundant.
Redundant
Host Host
Port 1 Port 2
Controller B
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Host cabling | 69